Abstract
Using an extension of the method of McConnell (1), an expression is derived for the nuclear magnetic resonance spectrum of a hydroxyl proton in a —CH2OH group which is undergoing intermolecular exchange. A graphical method is presented which enables a rapid evaluation of τ, the average lifetime of a hydroxyl proton between exchange events. Measurements of line widths and multiplet spacings in the n.m.r. spectra of ethanol—water solutions are interpreted in terms of the proton exchange reaction[Formula: see text]for which a value of 2.7 1. mole−1 sec−1 at 42 ± 1 °C is suggested as an upper limit to the rate constant.
Publisher
Canadian Science Publishing
Subject
Organic Chemistry,General Chemistry,Catalysis
Cited by
17 articles.
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